Okay so I am back from school, and yes it boring.
Anyways, to answer the question that many of you have: No, you aren't limited to Hoeen only Pokemon. For example, in the anime, May found a bulbasuar, even though it is Native to Kanto, right? However, Pokemon like Bulbasaur, or Cyndaquil are going to be harder to find, and may or may not appear at all.
Also no 5th Gen Pokes until the English release of B/W.